PERTH - 31 July 2010 - St Mary's Cathedral is the cathedral church of the Roman Catholic Archdiocese of Perth. Officially the Cathedral of the Immaculate Conception of the Blessed Virgin Mary, the cathedral is located at the peak of a hill in East Perth, at the centre of Victoria Square in Perth. Constructed 1865, it has since been modified several times with expansion completed in December 2009..Picture: Giordano Stolley/Allied PIcture Press